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From: Eli Britstein <elibr@nvidia.com>
To: <dev@dpdk.org>
Cc: Dekel Peled <dekelp@nvidia.com>, Ori Kam <orika@nvidia.com>,
	Matan Azrad <matan@nvidia.com>,
	Shahaf Shuler <shahafs@nvidia.com>,
	"Slava Bogdanovich Ovsiienko" <viacheslavo@nvidia.com>
Subject: Re: [dpdk-dev] [PATCH V2 1/1] net/mlx5: fix IPv6 next proto validation
Date: Tue, 20 Oct 2020 16:49:27 +0300
Message-ID: <ba8d8f68-2e1c-9d97-36f0-4414dc28058a@nvidia.com> (raw)
In-Reply-To: <20201020131913.19755-1-elibr@nvidia.com>

++

On 10/20/2020 4:19 PM, Eli Britstein wrote:
> Previous patch added validation of the IPv6 next proto field, in order
> to overcome a known limitation.
> One of the values checked is IPPROTO_HOPOPTS, which is defined as 0.
> If proto field is not specified for matching, or mask=0, as in the
> following, a wrong validation takes place.
> flow create 0 ingress pattern eth / ipv6 has_frag_ext is 0 / end actions
> drop / end
> Fix the validation only on proto asked by the user.
>
> Fixes: 55e4c1d1ba73 ("net/mlx5: enforce limitation on IPv6 next proto")
>
> Signed-off-by: Eli Britstein <elibr@nvidia.com>
> Acked-by: Dekel Peled <dekelp@nvidia.com>
> ---
>   drivers/net/mlx5/mlx5_flow.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
> index c56dac89f9..e0ca8e06b1 100644
> --- a/drivers/net/mlx5/mlx5_flow.c
> +++ b/drivers/net/mlx5/mlx5_flow.c
> @@ -1977,7 +1977,7 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
>   					  RTE_FLOW_ERROR_TYPE_ITEM, item,
>   					  "IPv6 cannot follow L2/VLAN layer "
>   					  "which ether type is not IPv6");
> -	if (mask && spec)
> +	if (mask && mask->hdr.proto && spec)
>   		next_proto = mask->hdr.proto & spec->hdr.proto;
>   	if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
>   		if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)

  reply	other threads:[~2020-10-20 13:49 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-20 12:09 [dpdk-dev] [PATCH] " Dekel Peled
2020-10-20 13:19 ` [dpdk-dev] [PATCH V2 1/1] " Eli Britstein
2020-10-20 13:49   ` Eli Britstein [this message]
2020-10-21 14:22   ` Matan Azrad
2020-10-22  8:26     ` [dpdk-dev] [PATCH V3 " Eli Britstein
2020-10-22 10:01       ` Raslan Darawsheh
2020-10-22 16:38         ` Ferruh Yigit

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